add multiply to ttkspacer

[SZRabinowitz]

• Override the multiplication dunder for ttkspacer to support creating multiple spacers at a time.

for example:

row_2.addWidgets([ttk.TTkButton(text="Submit"), *ttk.TTkSpacer() * 3])

I want to add a test but I cannot figure out the naming scheme of the t.ui tests.

So Here is the test:

import TermTk as ttk

root = ttk.TTk(layout=ttk.TTkVBoxLayout())
frame_1 = ttk.TTkFrame(title="Without Spacer", border=True, layout=ttk.TTkHBoxLayout(), parent=root)
frame_1.layout().addWidgets([ttk.TTkButton(text="Button 1")])

frame_2 = ttk.TTkFrame(title="With 1 Spacer", border=True, layout=ttk.TTkHBoxLayout(), parent=root)
frame_2.layout().addWidgets([ttk.TTkButton(text="Button 2"), ttk.TTkSpacer()])

frame_3 = ttk.TTkFrame(title="With multiple Spacer", border=True, layout=ttk.TTkHBoxLayout(), parent=root)
frame_3.layout().addWidgets([ttk.TTkButton(text="Button 3"), *ttk.TTkSpacer() * 100])

root.mainloop()

[SZRabinowitz]

I can see multiple use cases for this.

In the test I provided, I used it to make sure the button stays it's minimum size. Is there a better way to accomplish that?

[ceccopierangiolieugenio]

I can see multiple use cases for this.

In the test I provided, I used it to make sure the button stays it's minimum size. Is there a better way to accomplish that?

yes, any widget has a minimum and maximum size, just define the maximum size the value that you need.

[SZRabinowitz]

yes, any widget has a minimum and maximum size, just define the maximum size the value that you need.

Thanks for the answer. In the above example, it would shrink the entire frame.

I guess the right approach would be to set the minimum width and add only a single spacer.

[ceccopierangiolieugenio]

unfortunately i cannot accept this PR, it will add a use case that was not intended for the layout mechanism.
I'd rather add (and I will eventually) a form layout to address this issue.
instead of filling the layout with hundreds of spacers (which memory footprint could be significant), I would write something like:

l = ttk.TTkGridLayout()
l.addWidget(ttk.TTkButton(<init something>), 0,0)
l.addItem(ttk.TTkLayout(),0,1,1,99)

an empty layout works as well as a spacer and it is lighter.
i assign it 99 colspan in order to force the layout to use 1/100 width for the button and 99/100 for the spacer, still I would not choose this solution either but rather plan the sizes of the elements and define their max/min dimension.

[SZRabinowitz]

Great explanation! Thank you for your time!